Brushing and polishing machine



1,625,667 W..D. LEE

BRUSHING AND POLISHING MACHINE Filed May 25. 1925 3 Sheets-Sheet 1 April 19, 1921.

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19 7. pnl 19 2 w. D. LEE

BRUSHING AND POLISHING MACHINE Filed May 23. 1925 3 Sheets-Sheet 2 1927. A911119 w. D. LEE

BRUSHING AND POLISHING MACHINE Filed May 23, 1925 Patented Apr. 19, 1927.

narran stares..

Parnu-fr e Application ledMay 23, 1925;

This inventionK relates to; a. machine designed to brush and polish hard wood ou waxed floors orother. suof'aces.

It is: aimed to; provide a novel: construction which will elfect a' material saving: in both time and laboirand at thesame'timebe exceedingly simploand capableof manufacture'at low cost.

fr. particular object is rto providea construction having; al novel sectional: anch removable arm: whicln houses the intermediate drivingl pants and. which, journals and positions the shaftufon thebruslles.. f

Another obj ect is to provide'azcenstruction which isadjustable,y atany desiredl angle accordingzt'o the work.

Additionah objects and advantages will become apparentfrom a' consideration` o-ftfhe description following taken in: connect-'ion with accompanying? drawings' i llustratin an: operative embodiment..

lin said drawings Fignre-l' is a plani view of the deviceg:

Figure 2 is a side elevation;

Figure' 8 is al rear elevations;

Figure isa sectional'. viewtalen oni the; lineas-4 of Fignrel andrpaseing.- longitudinally of the arm; f

Fioure' 5- is` az transverse sectional view taken ,onthe line 5)#5 of Figure 1: andy pasa ingftransversely of the armi;

Figure 6 is a; sectional view taken oir the line' (iE-6 offligure 1 and passinglongitudinally. ofthe motoryshaftg:

Fi 'ure-.7 i'sla'- seetionalview' taken on' the line;- -7 ofi Figure passing` particularly through the brush shaft. ati. itsvconnectio-n witln the,I armi;` and. Eiguref 8: is ai detail view of one end of the brush shaft and hub.

Inicanrying out the invention, the operative parts are mounted upon a suitable truck as at 10 comprising,` a platform 11 mounted on rollers 12 and adapted to be controlled by a conventional removable handle 13 at the rear thereof.

Rigidly secured to the platform as by bolts 14 is a standard l5 which is bifurcated at its upper end to provide spaced bearings 16. A pulley 17 is journaled in the bearings 16 and removably connected as by a set screw 18 to a drive shaft 19 which may be the main shaft of an electric motor 20, suitably supported on the platform 11 and adapted for connection to any suitable source of electric eurrent. An endless drive belt 21 is trained over the pulley 17 particularly in a groove or Serial No2. 325382.

depressionv 22. thereof.` Sha-ft 19` has a de-- tachable connection withthe motor so thatthe same with the pulley. 22 in"place-thereony may. be. withdrawn through.l the bearingsv 1:8 1n a. direction away fromthemotor for the release' orreplacementofi the belt 21.

Belt 21x is also trained over a pulley 23 asina groove or depression-.24 thereof.y Pule ley 23 isrigid with'albrushshaft 2.5andmay be. detachable therefrom if' desired, for in# stance being.- fastened theretofby set screw` as at 26. Said shaft carries suitable brushes 27,. one onv eachl side of the pulley- 28, said brushes having,l hubs 28 of cylin drical form slidable over the shaft 25= and removably7 secured. thereon by pinsV on keys 2Ga which pass through openingsin. t-he ends of shaft-25 and enter notches 29fin the outer endsof the hubs 28, whereby the hubs` and brushes are connected to the shaft removably but against relative tur-ning movement.

Any armstructure is provided at 30 to house the drivingconnections and as well operatively mounti the shaft 25 with. respect' tothe standard 15 and shaft? 19. krlhis-arm structure 30 consists of two substantially similar sections 31.' separable from eachother and detachably secured' together as at 32 in any suitablemanner.v The armslv arehollow and at their .ends are widened so as tohave flanges at 38 and-,311. The flangesL 33 extend tothe shaft- 19 intimately fitting# its exterior, and thusoverlapping the bearings 16 and. hub 17.V Said hub 17: isV grooved at its, ends-asat 35 and has bear-ingA balls or the like 36 disposed therein which also= engage theflanges.. By reasonloffthese flanges 33 the bearing; 16A and pulley 17 are held assembled withv armi 30y on shaft 19. It. wilt be understood that the end of the lower arm 31 adjacent to the shaft 19 is bifurcated to conform to the support or upright 15.

The flanges 3/1 intimately fit the periphery of the shaft 25 and thus overlap the ends of the pulley 24 and accordingly the arm 30 mounts the shaft 25 removably in place. The ends of pulley 24 are grooved as at 37 and have 'bearing balls disposed therein which also engage the flanges 34.

The arm structure 30 serves as a handle in the positioning or manipulation of the brushes as will be understood and such arm structure may be fastened at various angles according to the extent of engagement of the brush with respect to the floor, as by means of a set screw 39 carried by the uppermost arm 31 and adapted iter binding engagement against the adjacent bearing 1G. Normally the set screw 39 is out ot binding relation `with the adjacent bearing le and hence the brushes are subject lo iree vertical movement to fluctuate with the undula tions ot the ilioor. Said brushes 27 .may be ot any type desired and depending upon the work, that is whether or not the il'loor is to be merely brushed or polished or to be used in the application ot a coating ol' wax or the equivalent thereto.

in use. the motor Qt) under appropriate control, drives the shalt if) and accordinfsfgly pulley .1 7 which in turn drives belt il and pulley l-3. brush shalt li and the brushes The brushes Q7 thus rotate and due to their engagement n'ilh the door acmanpanied b v a movement ot the plall'orni ll over the door, polish the same `in an obvious inanner. The, various parts may be disassembled 'lor inspection. or repair. Yiu the manner previously set vForth.

VVarious changes may he resorted lo pro-A vided they lall within the spirit and scope et the invention.

l. n device ot the class described coniprising a brush sha'lt, a driving member rigid on said shaft, a supportingl ariu l'or said shalt. and said supporting arm overlapping said driving.;l member at the ends thereolI to prevent longitudinal disphu'enient olI the shaft. said supporting arni beingl in part separable to release the shatt with the brush assembled thereon, and driving means associated with said ('lriving` member.

2. l device oi' the class described comprising a` brush shait, a driving member rigid on said shatt, a supporting arm tor said shalt, and said supporting` arm overlapping said dri\'ingl mcn'iber at the ends thereoi lo prevent longitudinal displacement ot the shalt, said arm being sectional with its paris removable in a direction transversely of the shalft to permit release ol said shaft Vwhile the brushes are assembled thereon, and driving means il'or said member passing through .sai d arm.

tenace? 3. A device of the class described comprising a brush shaft, a pulley rigid on said shaft, a sectional arm carrying said shaft and having parts overlapping the ends of said pulley to prevent longitudinal displacew nient ot the slia'lt, said parts being separable to release the shalt with the bruslies assem bled thereon, and driving means for said sha-lit including a llexilile element passing through said arm and trained over said pulley.

.i. A device ol the class described com prisiug a single shait, brushes removably dispel-:ed on said shalt, a driving member rigid on said sha'lt interineiliate said brushes, supporting means for said shalt engaging opposite ends et said driving means to prevent displacement ot the shaft, said .supporting means being in sectional parts removable in a direction transversely of the shaft to release the sha'lt with the brushes assem bled thereon, and a driving connection :tor said driving member. i

ti. A device ot' the class described comprising a stanihirifl, a driven shaft mounted thereon, a driving' member on said shaft located within the standard, a sectional arm movable ou said shaft as an axis and having parts overlapping opposite ends ot the member lo prevent displacement thereof 'roin the shalt, the sections ot the arm being separable in a direction transversely of: ihe sha'l't to release the shalt with the brushes assembled thereon, a brush shaft supported by said arm, and means passii'ig through said arm to drive said brush shaft from said driving member.

(S. A device ot the class described corina-is ing a sectional arm, having its sections separable laterally, a driving element passing through said arm, a connection driven from said element positioned Within the sections o'lE said arm, a brush sha'lt driven by said element and supported by said arm, and means on said arm holding said brush shalt against displacement.

in testimony whereot l ailix my si gnature.

VALTER D. LEE. 

